2 Answers
2

If you remove your Redirect from the .htaccess file, you could try adding a custom 404.php template file to your theme. I'm not sure exactly what you are asking. Do you want the page to Redirect, or do you want a custom 404 page that displays similar items?

To achieve the show similar posts using the 404.php template try this:

Create a php file named 404.php
Add this to the file and save it, then upload it to your theme directory:

NOTE:
You will need to replace the div's I've used with the ones your theme has or it won't look like the rest of your website. Open your index.php file and replace the <div class="container"> and <div class="content">from my file with your theme's div's.

I had noticed that Wordpress itself was making redirects for certain urls (that didn't exist and should therefore cause a 404). Apparently it's a new feature: mydigitallife.info/… I had no idea who was creating those redirects, that's what puzzled me.
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FernandoAug 3 '11 at 14:31

will create more problems than solve because that will enable other sorts of urls. http://www.easyjob.net/ and http://www.easyjob.net/index.php will be accessible and that is very bad for SEO since you have to pages showing the same content. I am looking for a solution to stop Wordpress from redirecting misspelled URLs and will update you I find one